Yes, apparently due to Amazon’s interpretation of banking laws/rules/regulations, it has long been known that there’s a minimum threshold at which, if not exceeded, seems to prevent the automated mechanism(s) from collecting piddling amounts.
The general consensus of the replies I’ve seen about this, from the seasoned and savvy forum veterans over the years in various versions of the ASF, seems to be that it might be required for a 3P Seller to make an action (sales, ads, FBA Inbound Shipment,what have you) in said Global Marketplace which results in an additional charge which, when added to the outstanding charge, exceeds the minimum threshold, and thus allows the slate to cleaned.
I refuse to do this, as I tangentially touched upon in another recent SAS thread (link) along similar Global Selling lines.
Were we ever to face the scenario which you’ve premised for the closure of your other SoA Account, I’d simply have our beagles (Legal Department) draft a carefully-couched Demand Letter, sent by Certified Mail to the OGC, insisting that Amazon provide us viable means for clearing the outstanding debt on its books.
It’s amazing what can be accomplished when one finds a clear path through Amazon’s bureaucratic red tape - and the path of least resistance, with the fewest hurdles, begins and ends with a judicious relationship between one’s own legal representation, and that of Amazon: the OGC (“Office of the General Counsel”).